ưe
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It is a long time since we last met.
=> We have not met for a long time.
It is a long time since we last met.
\(\Rightarrow\)We have not met for a long time

6. Alexander Graham Bell
introduced(introduce) the telephone in 1876.
7. Yesterday 1
was...(be) busy, so I
didn't have..(not have) time to phone you.
8. Would you like
to come..(come) to dinner tomorrow?
9. What were you doing when ưe.
Phoned· (phone) you last night?
10. Mr. Robinson enjoys
(listen) listening to music while he is driving
..(drive)
11. Last night I (not watch).didn't watch
TV

1. will do
2. will be sleeping
3. will be sitting
4. will call
5. will not come
6. Will you be eating
8. Will she drive

1 Walks
2 Listen
3 Do .... love
4 studies
5 carries
6 Do ....ride
7 cycles ....... goes
8 use
9 isn't
10 Don't visit
11 play
12 Doesn't work
13 tells
14 helps
15.martha and Kevin (swin).................................twike a week(sai đề , đúng là Swim)
16 dance
17 takes
18 leaves
19 live
20 Does....... travel
21.............................................cookies twike a month(Câu này thiếu đề nha bạn)
22 teach
23 Helps
24 buys ...... does
25 s ........ gets
26 eat ...... has
27 do ..... live
28 aren' t
29 Are the apple ......
30 Does ...... do
is...
31 doesn't
32 is
33 go have
34 Does ..... go
35 Does ..... go
36 Do .... get up
37 Do.... do
38 have
39 is
40 goes

a) Sửa đề: C/m tứ giác BEHC nội tiếp
Xét tứ giác BEHC có
\(\widehat{BEC}=\widehat{BHC}\left(=90^0\right)\)
\(\widehat{BEC}\) và \(\widehat{BHC}\) là hai góc cùng nhìn cạnh BC
Do đó: BEHC là tứ giác nội tiếp(Dấu hiệu nhận biết tứ giác nội tiếp)

Phép nhân hoá:
Ví dụ: Bác gấu đang bảo vệ những chú hươu khỏi đàn sói hung ác
ai kết bạn cho xu